dohertj2
c95824a65d
Full read-only SDK (src/AVEVA.Historian.Client) implementing the CLAUDE.md required
surface against AVEVA Historian's binary WCF protocol — no native AVEVA runtime
dependency. All operations live-verified against a local Historian:
- ProbeAsync, ReadRawAsync, ReadAggregateAsync, ReadAtTimeAsync, ReadEventsAsync
- BrowseTagNamesAsync, GetTagMetadataAsync (17 native data-type codes mapped)
- GetConnectionStatusAsync, GetStoreForwardStatusAsync, GetSystemParameterAsync
- 108/108 unit + integration tests pass
Includes the reverse-engineering toolkit (tools/AVEVA.Historian.ReverseEngineering)
used to decode the protocol: WCF probes, IL inspection via dnlib, and IL-rewrite
instrumentation (instrument-wcf-{write,read}message etc.) plus the .NET Framework
trace harness (tools/AVEVA.Historian.NativeTraceHarness) for parity testing.
Sanitized handoff evidence under docs/reverse-engineering/. Native AVEVA binaries
(current/, aveva-install-x64/, aveva-install-x86/) are gitignored — fetch separately
from the AVEVA installer.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
46 lines
1.5 KiB
JSON
46 lines
1.5 KiB
JSON
{
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"Count": 3,
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"Rows": [
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{
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"Index": 0,
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"Sha256": "171fee4de57c4130a7d716a26906eb4481328ffb931251ad49acc0182f384578",
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"TagKey": 238,
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"EndUtc_0x28": "2026-05-01T14:34:18.8170203Z",
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"StartUtc_0x150": "2026-04-24T15:54:18.8170203Z",
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"Quality_0x30": 0,
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"QualityDetail_0x34": 64,
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"OpcQuality_0x38": 64,
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"PercentGood_0x80": 19.614948272705078,
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"ResolutionScaled_0x1A8": 0,
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"ResolutionCandidate_0x1B8": 7
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},
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{
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"Index": 1,
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"Sha256": "ff8848ca8765fe97f76a82a2006511ccfb055b139a6eced3ded9715261e12d86",
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"TagKey": 238,
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"EndUtc_0x28": "2026-05-02T14:34:18.8170203Z",
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"StartUtc_0x150": "2026-05-01T14:34:18.8170203Z",
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"Quality_0x30": 0,
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"QualityDetail_0x34": 4160,
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"OpcQuality_0x38": 64,
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"PercentGood_0x80": 99.99822998046875,
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"ResolutionScaled_0x1A8": 0,
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"ResolutionCandidate_0x1B8": 7
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},
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{
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"Index": 2,
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"Sha256": "ff8848ca8765fe97f76a82a2006511ccfb055b139a6eced3ded9715261e12d86",
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"TagKey": 238,
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"EndUtc_0x28": "2026-05-02T14:34:18.8170203Z",
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"StartUtc_0x150": "2026-05-01T14:34:18.8170203Z",
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"Quality_0x30": 0,
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"QualityDetail_0x34": 4160,
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"OpcQuality_0x38": 64,
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"PercentGood_0x80": 99.99822998046875,
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"ResolutionScaled_0x1A8": 0,
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"ResolutionCandidate_0x1B8": 7
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}
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],
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"Notes": "0x28 is managed EndDateTime for aggregate rows; 0x150 is managed StartDateTime. Last two captures are duplicate no-more-data snapshots."
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}
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